Patents by Inventor Marcus STIER

Marcus STIER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11953300
    Abstract: Metallic solid projectile for practice cartridges, in particular for use on preferably police shooting ranges, wherein the solid projectile comprises a front-side ogival portion and a cylinder portion for holding the solid projectile in a cartridge case and defines a projectile length in the axial direction, wherein the ogival portion has an ogival wall and a rotationally symmetrical ogival cavity circumferentially bounded by the ogival wall, wherein it is provided that a fully cylindrical stem portion of the solid projectile extends in the axial direction over less than 45% of the projectile length.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: April 9, 2024
    Assignee: RUAG Ammotec GmbH
    Inventors: Florian Spanner, Heinz Riess, Marcus Stier
  • Patent number: 11879709
    Abstract: Intermediate for the production of a projectile in particular a deformable bullet, consisting of a ductile blank, which is cold-formed into the intermediate by means of pressing, a cylindrical solid base end section and a press end section with a central press recess incorporated by means of pressing and a wall limiting the press recess to form an ogival shaped tip, wherein the wall is formed with at least two slots extending in the axial direction of the intermediate, which separate at least two prongs in the circumferential direction of the intermediate, wherein the at least two slots extend by more than 10% of an axial total longitudinal extension of the intermediate from the wall end towards the base end section.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: January 23, 2024
    Assignee: RUAG AMMOTEC GMBH
    Inventors: Florian Spanner, Marcus Stier, Michael Koerber
  • Publication number: 20230117770
    Abstract: Intermediate for the production of a projectile in particular a deformable bullet, consisting of a ductile blank, which is cold-formed into the intermediate by means of pressing, a cylindrical solid base end section and a press end section with a central press recess incorporated by means of pressing and a wall limiting the press recess to form an ogival shaped tip, wherein the wall is formed with at least two slots extending in the axial direction of the intermediate, which separate at least two prongs in the circumferential direction of the intermediate, wherein the at least two slots extend by more than 10% of an axial total longitudinal extension of the intermediate from the wall end towards the base end section.
    Type: Application
    Filed: December 7, 2022
    Publication date: April 20, 2023
    Inventors: Florian SPANNER, Marcus STIER, Michael KOERBER
  • Patent number: 11561074
    Abstract: Intermediate for the production of a projectile in particular a deformable bullet, consisting of a ductile blank, which is cold-formed into the intermediate by means of pressing, a cylindrical solid base end section and a press end section with a central press recess incorporated by means of pressing and a wall limiting the press recess to form an ogival shaped tip, wherein the wall is formed with at least two slots extending in the axial direction of the intermediate, which separate at least two prongs in the circumferential direction of the intermediate, wherein the at least two slots extend by more than 10% of an axial total longitudinal extension of the intermediate from the wall end towards the base end section.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: January 24, 2023
    Assignee: RUAG AMMOTEC GMBH
    Inventors: Florian Spanner, Marcus Stier, Michael Koerber
  • Publication number: 20220357139
    Abstract: Metallic solid projectile for practice cartridges, in particular for use on preferably police shooting ranges, wherein the solid projectile comprises a front-side ogival portion and a cylinder portion for holding the solid projectile in a cartridge case and defines a projectile length in the axial direction, wherein the ogival portion has an ogival wall and a rotationally symmetrical ogival cavity circumferentially bounded by the ogival wall, wherein it is provided that a fully cylindrical stem portion of the solid projectile extends in the axial direction over less than 45% of the projectile length.
    Type: Application
    Filed: July 22, 2022
    Publication date: November 10, 2022
    Inventors: Florian SPANNER, Heinz RIESS, Marcus STIER
  • Patent number: 11428516
    Abstract: Metallic solid projectile for practice cartridges, in particular for use on preferably police shooting ranges, wherein the solid projectile comprises a front-side ogival portion and a cylinder portion for holding the solid projectile in a cartridge case and defines a projectile length in the axial direction, wherein the ogival portion has an ogival wall and a rotationally symmetrical ogival cavity circumferentially bounded by the ogival wall, wherein it is provided that a fully cylindrical stem portion of the solid projectile extends in the axial direction over less than 45% of the projectile length.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: August 30, 2022
    Assignee: RUAG AMMOTEC GMBH
    Inventors: Florian Spanner, Heinz Riess, Marcus Stier
  • Publication number: 20220187049
    Abstract: The present invention relates to a deformation and/or partial fragmentation projectile comprising a jacket and a two-part core arranged within the jacket and having a projectile front-sided core part and a projectile rear-sided core part, the core being attached to the jacket such that the projectile rear-sided core part is more strongly attached to the jacket than the projectile front-sided core part.
    Type: Application
    Filed: March 30, 2020
    Publication date: June 16, 2022
    Inventors: Marcus STIER, Gerhard MEHL, Heinz RIESS
  • Publication number: 20200370872
    Abstract: Intermediate for the production of a projectile in particular a deformable bullet, consisting of a ductile blank, which is cold-formed into the intermediate by means of pressing, a cylindrical solid base end section and a press end section with a central press recess incorporated by means of pressing and a wall limiting the press recess to form an ogival shaped tip, wherein the wall is formed with at least two slots extending in the axial direction of the intermediate, which separate at least two prongs in the circumferential direction of the intermediate, wherein the at least two slots extend by more than 10% of an axial total longitudinal extension of the intermediate from the wall end towards the base end section.
    Type: Application
    Filed: December 10, 2018
    Publication date: November 26, 2020
    Inventors: Florian Spanner, Marcus Stier, Michael Koerber
  • Patent number: 10618105
    Abstract: A casting device and casting method are provided for producing components, in particular cylinder heads. The device includes a reusable steel upper core, which can be lifted off from the component to be produced and which has a movable displacing element. The displacement element can be pressed into the component to be produced for dense feeding. In a method for producing a cylinder head by casting, wherein the steel upper core is used as a substitution for a sand cover core, for dense feeding the displacing element is pressed into the melt that forms the cylinder head in the solidified state.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: April 14, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Andreas Fent, Richard Schaechtl, Hubert Lang, Marcus Stier, Thomas Summer
  • Publication number: 20190186881
    Abstract: Metallic solid projectile for practice cartridges, in particular for use on preferably police shooting ranges, wherein the solid projectile comprises a front-side ogival portion and a cylinder portion for holding the solid projectile in a cartridge case and defines a projectile length in the axial direction, wherein the ogival portion has an ogival wall and a rotationally symmetrical ogival cavity circumferentially bounded by the ogival wall, wherein it is provided that a fully cylindrical stem portion of the solid projectile extends in the axial direction over less than 45% of the projectile length.
    Type: Application
    Filed: August 2, 2017
    Publication date: June 20, 2019
    Inventors: Florian SPANNER, Heinz RIESS, Marcus STIER
  • Publication number: 20160038995
    Abstract: A casting device and casting method are provided for producing components, in particular cylinder heads. The device includes a reusable steel upper core, which can be lifted off from the component to be produced and which has a movable displacing element. The displacement element can be pressed into the component to be produced for dense feeding. In a method for producing a cylinder head by casting, wherein the steel upper core is used as a substitution for a sand cover core, for dense feeding the displacing element is pressed into the melt that forms the cylinder head in the solidified state.
    Type: Application
    Filed: October 22, 2015
    Publication date: February 11, 2016
    Inventors: Andreas FENT, Richard SCHAECHTL, Hubert LANG, Marcus STIER, Thomas SUMMER